56f6923ccb
when a git repository is first being created. Clones will automatically notice that git-annex is in use and automatically perform a basic initalization. It's still recommended to run "git annex init" in any clones, to describe them.
52 lines
1.1 KiB
Haskell
52 lines
1.1 KiB
Haskell
{- git-annex repository versioning
|
|
-
|
|
- Copyright 2010 Joey Hess <joey@kitenet.net>
|
|
-
|
|
- Licensed under the GNU GPL version 3 or higher.
|
|
-}
|
|
|
|
module Version where
|
|
|
|
import Control.Monad (unless)
|
|
|
|
import Types
|
|
import qualified Annex
|
|
import qualified Git
|
|
import Config
|
|
|
|
type Version = String
|
|
|
|
defaultVersion :: Version
|
|
defaultVersion = "3"
|
|
|
|
supportedVersions :: [Version]
|
|
supportedVersions = [defaultVersion]
|
|
|
|
upgradableVersions :: [Version]
|
|
upgradableVersions = ["0", "1", "2"]
|
|
|
|
versionField :: String
|
|
versionField = "annex.version"
|
|
|
|
getVersion :: Annex (Maybe Version)
|
|
getVersion = do
|
|
g <- Annex.gitRepo
|
|
let v = Git.configGet g versionField ""
|
|
if not $ null v
|
|
then return $ Just v
|
|
else return Nothing
|
|
|
|
setVersion :: Annex ()
|
|
setVersion = setConfig versionField defaultVersion
|
|
|
|
checkVersion :: Annex () -> Annex ()
|
|
checkVersion initaction = getVersion >>= handle
|
|
where
|
|
handle Nothing = initaction
|
|
handle (Just v) = unless (v `elem` supportedVersions) $
|
|
error $ "Repository version " ++ v ++
|
|
" is not supported. " ++
|
|
msg v
|
|
msg v
|
|
| v `elem` upgradableVersions = "Upgrade this repository: git-annex upgrade"
|
|
| otherwise = "Upgrade git-annex."
|